Deflection of Wood Shear Wall April 17, 2023

How to Enter Data

b = 10 ft = 0.178 in

v = 300 plfBoundary Element

Species Hem-Fir

Grade No. 2

HF No.2---

h = 8 ft # 2(in) nominal b 2(in) nominal d 6(in) actual b 3.00(in) actual d 5.50

S 15.13

A 16.50

Wood Panel Grades or Species Group Numbers I 41.59Exterior C-C and C-D G = 90,000 psi (psi) E 1,300,000

Nominal thickness of wood panel load/nail15/32-U t = 0.298 psi 0.006 60

Unsanded 0.010 80Interior Edge Nailing

10d @ 3 75 pounds / 10d OK

in. o.c. 0.0108 in

Holddown Selection Holddown connecting to Foundation

STHD14RJ 0.023 in

= +v h

+ +E A b G t b

(bending) (shear) (nail deformation) (chord splice slip)

= 0.0057 + 0.0895 + 0.0648 + 0.0180

= 0.1780

v = maximum shear due to design loads at the top of wall (plf)h = wall height (ft)b = wall width (ft)E = elastic moduus of boundary element (vertical member at shear wall boundary) (psi)A = area of boundary element cross section (sq.in.)G = modulus of rigidity of wood structural panel (psi)t = effective thickness of wood structural panel for shear (in)

= nail deformation (in)

= deflection due to anchorage details (rotation and slip at tie-down bolts) (in)

(in3)

(in2)

(in4)

en

en =

da =

8 v h3

0.75 h enh da

en

da

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Deflection of Wood Diaphragm April 17, 2023

How to Enter Data

L = 30 ft Boundary ElementSpecies Douglas Fir-Larch

Grade No. 2

DFL No.2---

# 2(in) nominal b 2

v v (in) nominal d 6b = 60 ft (in) actual b 3.00

(in) actual d 5.50

S 15.13

= 0.496 in A 16.50

I 41.59v = 200 plf (psi) E 1,600,000

Wood Panel Grades or Species Group NumbersUNBLOCKED

Exterior C-C and C-D G = 90,000 psi

Nominal thickness of wood panel load/nail3/4-U t = 0.445 psi 0.013 100

Unsanded 0.018 120Interior Edge Nailing

10d @ 6 100 pounds / 10d OK

in o.c. 0.0156 in

Chord Splice# of lines Connector Spacing

10 10d 10 0.077 inft o.c.

= +v h

+ +8 E A b 4 G t 2 b

(bending) (shear) (nail deformation) (chord splice slip)

= 0.0021 + 0.0375 + 0.0880 + 0.1203

= 0.2479 * 2

= 0.4958

v = maximum diaphragm shear due to design loads in the direction under consideration (plf)b = diaphragm width (ft)L = diaphragm length (ft)E = elastic moduus of chords (vertical member at shear wall boundary) (psi)A = area of chord cross section (sq.in.)G = modulus of rigidity of wood structural panel (psi)t = effective thickness of wood structural panel for shear (in)

= nail deformation (in)

= sum of individual chord-splice slip values on both sides of the diaphragm,

(in3)

(in2)

(in4)

en

en =

Dc =

5 v L3

0.188 L en( Dc X)

en

(DcX)

Developed by:Developed by:Forum EngineersForum Engineers

each multiplied by its distance to the nearest support